Question

Cathode rays are made to pass between the poles of a magnet as shown in figure. The effect of magnetic field is

• A. To deflect them towards the south pole
• B. To deflect them perpendicular to the plane of the paper and towards the observer
• C. To deflect them towards the north pole
• D. To increase the velocity of the rays

Answer 1

The correct option is B To deflect them perpendicular to the plane of the paper and towards the observer

Force will be perpendicular and outside to the plane of the paper